Security window



FIG. 1 is a perspective view of a security window showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being identical thereto; and

FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 2. 

The ornamental design for a security window, as shown and described. 